申请人:Leo Pharmaceutical Products, Ltd.
公开号:US04732998A1
公开(公告)日:1988-03-22
The present invention relates to hitherto unknown compounds of the formula I ##STR1## in which R.sub.1 is a straight or branched, saturated or unsaturated aliphatic or alicyclic C.sub.1 -C.sub.10 hydrocarbon radical, an aryl or an aryl-C.sub.1 -C.sub.4 -alkyl radical, R.sub.1 if desired being unsubstituted or substituted with straight or branched C.sub.1 -C.sub.4 -alkyl, amino, C.sub.1 -C.sub.4 -alkamino, di-(C.sub.1 -C.sub.4 -alkyl)-amino, carboxy, C.sub.1 -C.sub.4 -alkoxycarbonyl, hydroxy, C.sub.1 -C.sub.4 -alkoxy, phenoxy, mercapto, C.sub.1 -C.sub.4 -alkylthio, phenylthio, halogen, trifluoromethyl; R.sub.2 stands for hydrogen, C.sub.1 -C.sub.8 -alkyl, aryl-C.sub.1 -C.sub.4 -alkyl or halogen; X is O or S, and n is an integer from 0 to 2; with the proviso that R.sub.2 cannot be hydrogen or methyl if n=O and R.sub.1 is methyl. The compounds of the invention are valuable in the human and veterinary practice.
本发明涉及迄今为止未知的化合物,其化学式为I,在该式中,R.sub.1是直链或支链、饱和或不饱和的脂肪族或脂环族C.sub.1-C.sub.10烃基,芳基或芳基-C.sub.1-C.sub.4-烷基基团,R.sub.1如有必要,可以是未取代的或取代的,取代基为直链或支链C.sub.1-C.sub.4-烷基,氨基,C.sub.1-C.sub.4-烷氨基,二-(C.sub.1-C.sub.4-烷基)-氨基,羧基,C.sub.1-C.sub.4-烷氧羰基,羟基,C.sub.1-C.sub.4-烷氧基,苯氧基,巯基,C.sub.1-C.sub.4-烷硫基,苯硫基,卤素,三氟甲基;R.sub.2代表氢、C.sub.1-C.sub.8-烷基,芳基-C.sub.1-C.sub.4-烷基或卤素;X为氧或硫,n为0到2的整数;但R.sub.2不能为氢或甲基,如果n=0且R.sub.1为甲基。本发明的化合物在人类和兽医实践中具有重要价值。